identifying instance from shared spfile in RAC

  • From: hrishy <hrishys@xxxxxxxxxxx>
  • To: oracle-l@xxxxxxxxxxxxx
  • Date: Thu, 4 Oct 2007 13:10:57 +0100 (BST)

Hi

In a single instance database when i issue the startup
command the oracle software will read a 
instance specific init.ora file and bring up a
instance

what happens when there is shared spfile file with
entries like this in case of RAC

rac1.instance_number=1
rac2.instance_number=2

and when i say 

srvctl start instance -i rac1 how will oracle know
which instance is rac1 as the instance specific spfile
is no longer there only values seem to be there 

regards
Hrishy



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